Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau

Autores
Falaschi, Daniel; Bhattacharya, Atanu; Guillet, Gregoire; Huang, Lei; King, Owen; Mukherjee, Kriti; Rastner, Philipp; Yao, Tandong; Bolch, Tobias
Año de publicación
2023
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. In order to better constrain glacio-hydrological models, annual, or even better, seasonal information about glacier mass changes is highly beneficial. In this study, we test the suitability of very high-resolution Pleiades DEMs to measure glacier-wide mass balance at annual and seasonal scales in two regions of High Mountain Asia (Muztagh Ata in Eastern Pamir and parts of Western Nyainqêntanglha, South-central Tibetan Plateau), where recent estimates have shown contrasting glacier behaviour. We find that the average annual mass balance in Muztagh Ata between 2020 and 2022 was -0.11 ±0.21 m w.e. a-1, suggesting the continuation of a recent phase of slight mass loss following a prolonged period of balanced mass budgets previously observed. The mean annual mass balance in Western Nyainqêntanglha for the same period was highly negative (-0.60 ±0.15 m w.e. a-1 on average), suggesting increased mass loss rates. The 2022 winter (+0.21 ±0.24 m w.e.) and summer (-0.31 ±0.15 m w.e.) mass budgets in Muztag Ata and Western Nyainqêntanglha (-0.04 ±0.27 m w.e. [winter]; -0.66 ±0.07 m w.e. [summer]) suggest winter and summer accumulation-type regimes, respectively. We support our findings by implementing a Sentinel-1–based Glacier Index to identify the firn and wet snow areas on glaciers and characterize accumulation type and demonstrate the potential of very high-resolution Pleiades data to monitor mass balance at short time scales and to improve our understanding of glacier accumulation regimes across High Mountain Asia.
Fil: Falaschi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Bhattacharya, Atanu. No especifíca;
Fil: Guillet, Gregoire. University of Washington; Estados Unidos
Fil: Huang, Lei. Chinese Academy Of Sciences; China
Fil: King, Owen. University of St. Andrews; Reino Unido. University of Newcastle; Reino Unido
Fil: Mukherjee, Kriti. University of Cranfield; Reino Unido
Fil: Rastner, Philipp. Universitat Zurich; Suiza
Fil: Yao, Tandong. Chinese Academy of Sciences; China
Fil: Bolch, Tobias. University of St. Andrews; Reino Unido. Graz University Of Technology.; Austria
European Geoscience Union General Assembly 2023
Viena
Austria
European Geoscience Union
Materia
Glaciers
High Mountain Asia
freshwater
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/273975
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan PlateauFalaschi, DanielBhattacharya, AtanuGuillet, GregoireHuang, LeiKing, OwenMukherjee, KritiRastner, PhilippYao, TandongBolch, TobiasGlaciersHigh Mountain Asiafreshwaterhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. In order to better constrain glacio-hydrological models, annual, or even better, seasonal information about glacier mass changes is highly beneficial. In this study, we test the suitability of very high-resolution Pleiades DEMs to measure glacier-wide mass balance at annual and seasonal scales in two regions of High Mountain Asia (Muztagh Ata in Eastern Pamir and parts of Western Nyainqêntanglha, South-central Tibetan Plateau), where recent estimates have shown contrasting glacier behaviour. We find that the average annual mass balance in Muztagh Ata between 2020 and 2022 was -0.11 ±0.21 m w.e. a-1, suggesting the continuation of a recent phase of slight mass loss following a prolonged period of balanced mass budgets previously observed. The mean annual mass balance in Western Nyainqêntanglha for the same period was highly negative (-0.60 ±0.15 m w.e. a-1 on average), suggesting increased mass loss rates. The 2022 winter (+0.21 ±0.24 m w.e.) and summer (-0.31 ±0.15 m w.e.) mass budgets in Muztag Ata and Western Nyainqêntanglha (-0.04 ±0.27 m w.e. [winter]; -0.66 ±0.07 m w.e. [summer]) suggest winter and summer accumulation-type regimes, respectively. We support our findings by implementing a Sentinel-1–based Glacier Index to identify the firn and wet snow areas on glaciers and characterize accumulation type and demonstrate the potential of very high-resolution Pleiades data to monitor mass balance at short time scales and to improve our understanding of glacier accumulation regimes across High Mountain Asia.Fil: Falaschi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Bhattacharya, Atanu. No especifíca;Fil: Guillet, Gregoire. University of Washington; Estados UnidosFil: Huang, Lei. Chinese Academy Of Sciences; ChinaFil: King, Owen. University of St. Andrews; Reino Unido. University of Newcastle; Reino UnidoFil: Mukherjee, Kriti. University of Cranfield; Reino UnidoFil: Rastner, Philipp. Universitat Zurich; SuizaFil: Yao, Tandong. Chinese Academy of Sciences; ChinaFil: Bolch, Tobias. University of St. Andrews; Reino Unido. Graz University Of Technology.; AustriaEuropean Geoscience Union General Assembly 2023VienaAustriaEuropean Geoscience UnionCopernicus Publications2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectOtroBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/273975Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau; European Geoscience Union General Assembly 2023; Viena; Austria; 2023; 5435 - 5458CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-12612Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:40:21Zoai:ri.conicet.gov.ar:11336/273975instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-11-12 09:40:21.73CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
title Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
spellingShingle Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
Falaschi, Daniel
Glaciers
High Mountain Asia
freshwater
title_short Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
title_full Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
title_fullStr Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
title_full_unstemmed Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
title_sort Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau
dc.creator.none.fl_str_mv Falaschi, Daniel
Bhattacharya, Atanu
Guillet, Gregoire
Huang, Lei
King, Owen
Mukherjee, Kriti
Rastner, Philipp
Yao, Tandong
Bolch, Tobias
author Falaschi, Daniel
author_facet Falaschi, Daniel
Bhattacharya, Atanu
Guillet, Gregoire
Huang, Lei
King, Owen
Mukherjee, Kriti
Rastner, Philipp
Yao, Tandong
Bolch, Tobias
author_role author
author2 Bhattacharya, Atanu
Guillet, Gregoire
Huang, Lei
King, Owen
Mukherjee, Kriti
Rastner, Philipp
Yao, Tandong
Bolch, Tobias
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Glaciers
High Mountain Asia
freshwater
topic Glaciers
High Mountain Asia
freshwater
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. In order to better constrain glacio-hydrological models, annual, or even better, seasonal information about glacier mass changes is highly beneficial. In this study, we test the suitability of very high-resolution Pleiades DEMs to measure glacier-wide mass balance at annual and seasonal scales in two regions of High Mountain Asia (Muztagh Ata in Eastern Pamir and parts of Western Nyainqêntanglha, South-central Tibetan Plateau), where recent estimates have shown contrasting glacier behaviour. We find that the average annual mass balance in Muztagh Ata between 2020 and 2022 was -0.11 ±0.21 m w.e. a-1, suggesting the continuation of a recent phase of slight mass loss following a prolonged period of balanced mass budgets previously observed. The mean annual mass balance in Western Nyainqêntanglha for the same period was highly negative (-0.60 ±0.15 m w.e. a-1 on average), suggesting increased mass loss rates. The 2022 winter (+0.21 ±0.24 m w.e.) and summer (-0.31 ±0.15 m w.e.) mass budgets in Muztag Ata and Western Nyainqêntanglha (-0.04 ±0.27 m w.e. [winter]; -0.66 ±0.07 m w.e. [summer]) suggest winter and summer accumulation-type regimes, respectively. We support our findings by implementing a Sentinel-1–based Glacier Index to identify the firn and wet snow areas on glaciers and characterize accumulation type and demonstrate the potential of very high-resolution Pleiades data to monitor mass balance at short time scales and to improve our understanding of glacier accumulation regimes across High Mountain Asia.
Fil: Falaschi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Bhattacharya, Atanu. No especifíca;
Fil: Guillet, Gregoire. University of Washington; Estados Unidos
Fil: Huang, Lei. Chinese Academy Of Sciences; China
Fil: King, Owen. University of St. Andrews; Reino Unido. University of Newcastle; Reino Unido
Fil: Mukherjee, Kriti. University of Cranfield; Reino Unido
Fil: Rastner, Philipp. Universitat Zurich; Suiza
Fil: Yao, Tandong. Chinese Academy of Sciences; China
Fil: Bolch, Tobias. University of St. Andrews; Reino Unido. Graz University Of Technology.; Austria
European Geoscience Union General Assembly 2023
Viena
Austria
European Geoscience Union
description Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. In order to better constrain glacio-hydrological models, annual, or even better, seasonal information about glacier mass changes is highly beneficial. In this study, we test the suitability of very high-resolution Pleiades DEMs to measure glacier-wide mass balance at annual and seasonal scales in two regions of High Mountain Asia (Muztagh Ata in Eastern Pamir and parts of Western Nyainqêntanglha, South-central Tibetan Plateau), where recent estimates have shown contrasting glacier behaviour. We find that the average annual mass balance in Muztagh Ata between 2020 and 2022 was -0.11 ±0.21 m w.e. a-1, suggesting the continuation of a recent phase of slight mass loss following a prolonged period of balanced mass budgets previously observed. The mean annual mass balance in Western Nyainqêntanglha for the same period was highly negative (-0.60 ±0.15 m w.e. a-1 on average), suggesting increased mass loss rates. The 2022 winter (+0.21 ±0.24 m w.e.) and summer (-0.31 ±0.15 m w.e.) mass budgets in Muztag Ata and Western Nyainqêntanglha (-0.04 ±0.27 m w.e. [winter]; -0.66 ±0.07 m w.e. [summer]) suggest winter and summer accumulation-type regimes, respectively. We support our findings by implementing a Sentinel-1–based Glacier Index to identify the firn and wet snow areas on glaciers and characterize accumulation type and demonstrate the potential of very high-resolution Pleiades data to monitor mass balance at short time scales and to improve our understanding of glacier accumulation regimes across High Mountain Asia.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Otro
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/273975
Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau; European Geoscience Union General Assembly 2023; Viena; Austria; 2023; 5435 - 5458
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273975
identifier_str_mv Annual to seasonal glacier mass balance in High Mountain Asia from Pléiades stereo images: examples from the Pamir and the Tibetan Plateau; European Geoscience Union General Assembly 2023; Viena; Austria; 2023; 5435 - 5458
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-12612
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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